使用to_csv时，将datetime添加到导出文件名

Question

I try

snapshotdate = datetime.datetime.today().strftime('%m/%d/%Y')
os.chdir('/Users/Jason/Desktop')
df.to_csv(open(snapshotdata+'.csv','w'),index=none)

and get an error No such file or directory: '02/19/2017.csv'. '02/19/2017.csv' is exactly what I want to get. How can I do it while using to_csv()?

Answer 1

Don't use slashes in your filename. You're trying to create the file 2017.csv in subdirectory 19 of dir 02 , who don't exist.

Answer 2

Yes. I change snapshotdate = datetime.datetime.today().strftime('%m/%d/%Y') to snapshotdate = datetime.datetime.today().strftime('%m-%d-%Y')

It works now.